JPS59139512A - Contact welding method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 The invention is like a microswitch or relay.

[Background technology]

When welding this contact material to the terminal plate, from the viewpoint of downsizing electrical switches, in recent years a base (6) has been used as shown in Figure 1.
A pair of terminal plates (5) insert-molded in the above are placed so that their edges are facing each other, and a contact plate (21+2
There is one in which + is welded to the side surface of each terminal plate (5). In this case, since the contact material (2) is not housed on the opposing surfaces of both terminal plates +5), the contact material (2) is positioned and the contact distance t is adjusted. It is necessary to maintain contact while maintaining the same.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to provide a contact welding method that allows a pair of contact materials to be welded while maintaining a constant interval between them. 0 [Disclosure of the Invention] The present invention is characterized in that the tip of a pair of movable electrodes is brought into contact with the tips of the movable electrodes, and the material is adsorbed and held.The spacing between both liquids and the material is determined based on a reference member, and each contact material is brought into contact with the terminal plate, respectively. The present invention is characterized in that the contact material is welded to the terminal plate in contact with the terminal plate.The present invention will be described below in detail based on the drawings. Fig. 2 shows one embodiment, and in the figure (11 is a movable electrode, which has a stepped portion (7) formed at its tip and a suction hole (8) that reaches this stepped portion (7).A pair of movable electrodes t
1) is made to be slidable in the direction in which the interval between the electrodes changes, and the tip of the two movable electrodes (1) [1] is made to be slidable in the direction in which the tip approaches the pair of terminal plates (5).

Then, connect the pair of contact materials (2) to the terminal board +5+ +51
When performing K welding, each contact material (2) must be connected to both movable electrodes +
1) Step part (71 (7) at the tip of il) K suction hole (8
) to position the reference member (3) between both movable electrodes (1) (tl). And both movable electrodes +1
) (1) downward and attach the contact material (2) to the terminal board (6).
) are brought into contact with each other, and in this state, both movable electrodes +1) (1) are brought close to each other, and both contact materials (
Bring 2+ +21 into contact. Then, electric welding is performed. After this, the reference member (3) and the movable electrode 11)
Raise fII. Contact material +21 +2+ )2 A predetermined contact interval t depending on the thickness of the reference member (3). becomes.

The reference member (3) is preferably coated with a ceramic coating from the viewpoint of heat resistance.

FIG. 3 shows another embodiment. This is a pair of reference members +3
) +3) to determine the contact spacing t. First, both terminal plates (51 + 5 + both reference members + 3 + 3) with a fixed interval are positioned near each other, and then a pair of movable terminal plates (51 + 5 + 3) which are holding the contact materials (2) and (2) by suction are placed. electrode +1
) +1) is inserted between both reference members +3+ +3+, and the contact material (2] +21 is brought into contact with the terminal board (5) +5).Then, the two auxiliary electrodes (1) +g are separated from each other. Move the contact material (2) (21) to the reference member (3) respectively.
) (3), bring it into contact with the opposite surface of the eye, and perform electric welding in this state. After this, the movable electrode f21 +21 and the reference member +31131 are completely lifted up.

In addition, both movable electrodes +1+(1
) are biased away from each other by a spring, and both movable electrodes +1) are held by a pair of reference parts (3) (3).
+1) in the direction of approaching each other, and the contact material (
3) may be placed at a predetermined position.

〔Effect of the invention〕

As described above, according to the present invention, the contact material held by the movable electrode is welded to the terminal plate while in contact with the reference member, and the contact spacing is accurately determined. It is something that you can bathe in.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the contact material and the terminal board, Fig. 2(a)
(b) shows one embodiment of the present invention in Fig. 1Ii and Fig. 0 (
a) (b) (c) (d) (e) (f) are cross-sectional views showing other embodiments, in which (1) is a movable electrode, (2)
) indicates a contact material, (3) indicates a reference member, and (5) indicates a terminal plate. Agent Patent Attorney Ishi 1) Cho 7 (0) Figure 3 (e) (b) (f) Procedural amendment (voluntary) May 9, 1985 Contact with the Commissioner of the Japan Patent Office 3, amendment. Special Plan Applicant Address 1048 Kadoma, Kadoma City, Osaka Name (583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4, Agent 5, Application for self-correction of the date of the amendment order No. Japanese Patent Application No. 58-14140, page 1 of the specification of the present application, the claims are amended as follows. [(1) Hold a contact material at each tip of a pair of movable electrodes, determine the distance between both contact materials with reference to the base BP member, and bring each contact material into close contact with the terminal plate to attach the contact material to the terminal plate. A contact welding method characterized by welding. (2) A method according to claim 1, characterized in that both movable electrodes are disposed between a pair of reference members, and the distance between both contact members is determined by a reference surface that is a facing surface of both reference members. Contact welding method. ” 2. Correct “contact” in line 9 of page 2 of the above to “welding”. 3. Delete "adsorption" from the 17th line to the 18th line K on the same page. 4. Same” - 1 next to “Raise” on the 12th line of the % cow page
Insert the following sentence. "In this case, the contact material +2
An adsorption structure is not necessarily required as a configuration for holding 1+2J. This is because the movable electrode (1) and the reference member (3)
Even if the configuration is such that each contact material (2) is held between This is because it prevents you from adding too much to the price. ” 5. Delete “adsorption” from line 19 to line 20 of the same page. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] fl A contact material is suctioned and held at each tip of a pair of movable electrodes, and an interval between both contact materials is determined using a reference member as a reference, and each contact material is brought into contact with a terminal plate, so that the contact material is attached to the terminal plate. A contact welding method characterized by welding contact materials. (2) Claim 1, characterized in that both movable electrodes are disposed between a pair of reference members, and a distance between both contact materials is determined by a reference surface that is a facing surface of both reference members. contact welding method.